Joseph bijub



2. BUU R.

IGNITION SYSTEM. APPLICATION .HLED JUNE 7,I 9l9.

1,362,386, Pine-med 119014 19209 INVENTOR JOSEPH BIJUR ATTORNEY .Josnrn BIJUR, on NEW YORK,

PATENT OFFICE.

N. Y., ASSIGNOR TO BIJUR MOTOR APPLIANCE COM- PANY, A CORPORATION OF DELAWARE.

IGNITION SYSTEM.

Specification of Letters Patent.

Patented Dec. 14, 1920.

Application filed June 73.1919. Serial No. $02,479.

To all whom it cometm:

Be it known that I, J osa'PH BIJUR, aciti' zen of the United States, residin at New York city, in the countyof New ork and State of New York, have invented certain new and useful Improvements in Ignition Systems, of which the f llowing is a clear 1 and exact description, so h as will enable thers. skilled in the art to which it apperalias to make and use the same.

- [This invention relates to ignition systems and to apparatus therefor. "'One of the objects thereof is to provide a shall requlre little attention.

system of the abovetype which shall be reliable ,in action, which shall have a relatively lon period of usefulness and which Another object is to provide a system of the type referred to which shall produce a relatively hot ignition spark, efi'ectively avoiding however, arapid wear of the i breaker contacts.

' Other objects will be in part obvious and in art pointed out hereinafter.

he invention accordingly consists in the features of construction, combination of ele ments and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claim s.

Referring now to the accompanying drawings wherein is shown one of various possible embodiments of the several features of this invention, Figure 1 is a diagrammatic view of one embodlment of my invention,

2 and Fig. 2 is a detailed view showing the correct relative dis osition of certain of the parts indicated in ig. 1. Similar reference characters refer to $11111- lar parts throughout the different views of the drawings.

Referring now to the drawings I have in dicated a generator 1 of the type adapted to motor vehicles, the main brushes 2 and 3 of which are connected to mains 4 and 5 across which there is disposed at suitable storage battery 6 of the type employed on motor vehicles. By way of illustration I have shown a generator of the third-brush type, the field coil-1 thereof connecting an extra brush .2 displaced from neutral to the main 5. I

The battery 6-is preferably connected to the generator through the series coil 7 of an automatic switch 8 biased to open positionby spring, 13, the said switch having a shunt coil 9 connected across the mains 4 and 5. As my invention does not reside in the automa-tlc switch per 86, it may be briefly noted that when the generator produces the proper "oltage, coil 9 will cause the closure of switch 8 overcoming the retractile spring 13 so that the generator is directly connected in charging relation to the storage battery 6, and is furthermore connected in parallel with the battery to pass current to lamps 11 or other translating devices, which may be placed in circuit by closing the corresponding switches 12.

Connected across the mains 4.5 I have diagrammatically shown an ignition circuit comprising a primary coil 14 having in series therewith a breaker 15, the said breaker comprising a cam 16, a breaker arm 17 cooperating therewith and breaker contacts 1819, the former stationary, and the latter carried by the arm 17. Connected across the breaker contacts I preferably vprovide the usual condenser 32. I have indicated at 20 the secondary coil inductively related to the primary 14:, and connected to a spark-plug 21. It is to be understood that the invention does not reside in the details of the ignition circuit so far described, taken by itself, and it should be noted that either a separate coil may be used for each spark-plug or a single coil and distributer may be employed.

In proximity to breaker contacts 1819 I provide a magnetic blow-out comprising preferably a horse shoe magnet core 22 having poles 23, 24 in close proximity to, and at opposite sides of the gap 25 between contacts 18 and 19 when separated. The poles are preferably so related that the magnetic flux across the air gap 25 intersects the spark 26 between the said contacts substantially at right angles. 'The energizing element of the magnetic blow-out is a coil 27 encircling core 22 and connected to the mains 4 and 5. v

It is desirable to have the blow-out coil continuously energized during the operation of the engine, avo1ding,vhowever, needlessare ordinarily occurring between said con-- dicated diagrammatically at 29 with the ordinary ignition switch, diagrammatically indicated at 30.

Assuming the engine is set into operation my system functions as follows: When the" tacts, such are extending as shown in Fig.

2 across the flux indicated by arrows between poles 23 and 24. This action takes place according to the well known operation of magnetic blow-outs, the are being first deflected in a direction at right angles to both the magnetic flux and the direction of current flow. As a consequence the arc will be rapidly attenuated and interrupted causing a sharp break-down of the flux in the primary coil and consequently inducing a relatively high electromotive force in the secondary, resulting in a relatively hot ignition spark.

The spark or are of appreciable duration, which may occur between the primary contacts in the absence of my blowout or the equivalent thereofconstitutes a continuation of the current flow in the primary circuit after the breaker contacts 18, 19 are separated. The break-down ofthe magnetic flux is thus slower, and the electromotive force induced in the secondary is less than with my magnetic blow-out. y the use of my blow-out I thus secure a hotter ignition spark. 1

By virtue of the short duration of the spark between the primary contacts, the rate of pitting of said contacts is diminished, and the amount of attention and service required is lessened.

It should further be noted that in case the condenser should break down in operation my blow-out will render continued operation of the ignition system possible with reasonable eiliciency and will eiiectively prevent destruction of the breaker contacts.

Although I have by way or" illustration set forthmy invention as applied to a motor vehicle it is to be understood that it is applicable with beneficial results to stationary engines. It is also apparent that the 'invent-ion is not limited to ignition systems employing a battery as shown and described but has utility in any hightension ignition system whether of the magneto or battery messes type. It is also to be understood that the circuit shown in the drawings as of the two-wire type is merely illustrative and that the invention may be carried out in a single-wire or grounded application.

It will thus be'seen'that there is herein described apparatus in which the several features of "this invention are embodied, and which apparatus in its action attains the various objects of the invention and is well suited to meet the requirements of practical use.

As many changes could be made in the above construction and many apparently widely difierent embodiments of this invention could be made without departing from the scope thereof, it is intended that allmatter contained in the above description or shown in the accompanying drawings shall be interrupted as illustrative-and not in a limiting sense.

Having thus described my invention, what I claim as new and desire-to secure by Letters-Patent is:

1. In an ignition system, in combination, a source of current, a pair'of'breaker contacts, a condenser or the like, connected across said contacts, and a magnetic blow-' out having a coil connected to said source of current and havin two poles one on each side of said gair .,of.breaker contacts, whereby the flux 0 'said blow-out will intersect the residuary spark between said contacts at right angles.

2. In an ignition system, in-combination, a storage battery, a primary coil and a pair of breaker contacts in series therewith, said elements being connected across said battery, a condenser or the like connected across said contacts, a magnetic blow-out for interrupting the residuary spark between said contacts, said blow-out having a coil electrically connected across said battery, means for disconnecting said ignition circuit from said battery, and means for preventing energiza-tion of said blow-out coil, when said ignition circuit is disconnected.

3. In an ignition system, in combination, a storage battery, a primary. coil and a. pair of breaker contacts in series therewith, said elements being connected across said battery, a condenser or the like connected across said contacts, a magnetic blow-out for interrupting the 'residuary spark between said contacts, said blow-out including an energizing coil connected across said battery, a switch for closing said ignition circuit, and

a second switch interlocked therewith for JOSEPH BIJUR.

' June, 1919. 

